2053665134640 has 180 divisors, whose sum is σ = 8022915411264. Its totient is φ = 469409165568.

The previous prime is 2053665134581. The next prime is 2053665134671. The reversal of 2053665134640 is 464315663502.

2053665134640 is a `hidden beast` number, since 2 + 0 + 53 + 6 + 6 + 513 + 46 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29069952 + ... + 29140511.

Almost surely, 2^{2053665134640} is an apocalyptic number.

2053665134640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2053665134640 is an abundant number, since it is smaller than the sum of its proper divisors (5969250276624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2053665134640 is a wasteful number, since it uses less digits than its factorization.

2053665134640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58210496 (or 58210480 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

The spelling of 2053665134640 in words is "two trillion, fifty-three billion, six hundred sixty-five million, one hundred thirty-four thousand, six hundred forty".